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Level Pro ITC 250 SERIES User Manual

Made by: Level Pro
Type: User Manual
Category: Measuring Instruments
Pages: 18
Size: 0.57 MB

 

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Read the user's manual carefully before starting to use the unit or software.

 

Manufacturer

 reserves the right to implement changes without prior notice.

Firmware: V.1.00 or Higher

Input Type: 4-20 mA

Supply from Current Loop 4-20 mA

USER MANUAL

FLOW METER ITC 250 SERIES

Loop Powered Display

250 SERIES

* Quick Start Programming Menu          

Page 17

 


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1. BASIC REQUIREMENTS AND USER SAFETY

2. GENERAL CHARACTERISTICS

3. TECHNICAL DATA

4. DEVICE INSTALLATION

4.1. UNPACKING

4.2. ASSEMBLY

4.3. CONNECTION METHOD

4.4. MAINTENANCE

5. DESCRIPTION OF THE FRONT PANEL AND IR REMOTE CONTROLLER PUSH-BUTTONS

6. PRINCIPLE OF OPERATION

6.1. MEASUREMENT MODE

6.2. DETECTION OF THE PEAK VALUES

6.3. CONTROL OF THE RELAY OUTPUT

7. DEVICE PROGRAMMING

7.1. PROGRAMMING MENU

7.2. PARAMETERS EDITION.

7.2.1. Numeric parameters (digit change mode)

7.2.2. Switch parameters (“LIST” type)

7.3. MENU DESCRIPTION

7.3.1. “rEL” menu

7.3.2. “inPt” menu

7.3.3. ”HOLd” menu

7.3.4. “Scod” parameter

7.3.5. “dEFS” parameter

7.3.6. “SErv” menu

7.4. MENU STRUCTURE

02

03

03

04

04

04

05

07

07

08

08

09

09

10

10

11

11

11

12

12

13

15

16

16

16

17

TABLE OF CONTENTS

Loop Powered Display

250 SERIES

01

* Quick Start Programming Menu 

Page 17

 


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Loop Powered Display

250 SERIES

Explanation of symbols used in the manual

1. BASIC REQUIREMENTS AND USER SAFETY

This symbol denotes especially important guidelines concerning the installation 
and operation of the device. Not complying with the guidelines denoted by this 
symbol may cause an accident, damage or equipment destruction.

This symbol denotes especially important characteristics of the unit. Read any 
information regarding this symbol carefully.

IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS
RESPONSIBLE FOR POSSIBLE DAMAGES.

The manufacturer is not responsible for any damages caused by inappropriate installation, not 
maintaining the proper environmental conditions and using the unit contrary to its assignment.

Installation should be conducted by qualified personnel . During installation all available safety 
requirements should be considered. The fitter is responsible for executing the installation according 
to this manual, local safety and EMC
regulations.

GND input of device should be connected to PE wire;

The unit must be properly set-up, according to the application. Incorrect configuration can cause 
defective operation, which can lead to unit damage or an accident.
If in the case of a unit malfunction there is a risk of a serious threat to the safety of people or 
property additional, independent systems and solutions to prevent such a threat must be used.

The unit uses dangerous voltage that can cause a lethal accident. The unit must be switched off 
and disconnected from the power supply prior to starting installation of troubleshooting (in the case 
of malfunction).

Neighboring and connected equipment must meet the appropriate standards and regulations 
concerning safety and be equipped with adequate overvoltage and interference filters.

Do not attempt to disassemble, repair or modify the unit yourself. The unit has no user serviceable 
parts. Defective units must be disconnected and submitted for repairs at an authorized service 
center.

Do not use the unit in areas threatened with excessive shocks, vibrations, dust, humidity, corrosive 
gasses and oils.

Do not use the unit in areas where there is risk of explosions.

Do not use the unit in areas with significant temperature variations, exposure to condensation or ice.

Do not use the unit in areas exposed to direct sunlight.

Make sure that the ambient temperature (e.g. inside the control box) does not exceed the 
recommended values. In such cases forced cooling of the unit must be considered (e.g. by using a 
ventilator).

The unit is designed for operation in an industrial environment and must not be used in a 
household environment or similar.

02

 


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Optionally 

ITC 250

 can be equipped with bistable relay output. The device can be configured via IR 

remote controller.

IR remote controller is not a part of the 

ITC 250

 and must be ordered separately.

Minimal Supply

Current

3.5 mA

 | 

device supplied from current loop

Measurement Loop

voltage Drop

Max. 7 V

Current Input

4÷20 mA overload protected

 |

 maximum input current about 50 mA

Current Measurement

Accuracy

± 0,1% @ 25°C

 |

 ± One Digit

Temperature Stability

50 ppm 

|

 °C

Display Range

-999 ÷ 9999

 |

 plus decimal point

Accepted Prolonged

Input Overload

20%

Relay Output

Bistable 0.5A

|

30V AC (cos j = 1), min. switching delay: about 4 sec.

Display

LED, 4 digit

 |

 13mm height, Red

Data Memory

Non-volatile memory

 |

 EPROM type

Protection Level

IP 65

Housing Type

Wall Mounted

Housing Material

ABS + fibreglass

Housing dimensions

Without Glands: 64 x 58 x 36 mm

With Glands: 64 x 82 x 36 mm

Operating  Temperature

 

Model Dependant

0°C to +50°C

or -20°C to +50°C

Storage Temperature -

 Model Dependant 

-10°C to +70°C 

|

 -20°C to +70°C

Mounting

to wall

 |

 2 M3 bolts

Connection Cable

Without relay : 2 

C

ore 

C

able (

P

ower 

S

upply)

With relay : 4 or 5 core cable (2 power supply wires + 2 or 3 wires for relay)

3. TECHNICAL DATA

2. GENERAL CHARACTERISTICS

The 

ITC 250

 is a simple digital wall-mounted indicator equipped with one measurement input (current 

input, 4-20mA) used simultaneously as device power supply input. 

The c

urrent input has 

includes

 

an 

over-current

 protection circuit which protects standard resistor. The 

ITC 250

 allows user to select a 

conversion  characteristic  of  several  kinds:  linear,  square,  square  root,  and  user  defined  (max.20 
points length). 

The Display consists of 

 4-digit

s

 The d

isplayed values can be selected by 

the 

user, 

within the range of (

-999 to 9999

) including one

 decimal point.

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250 SERIES

03

 


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Max. Connection

Leads Diameter

2,5 mm2

EMC

According to: PN-EN 61326-1

4. DEVICE INSTALLATION

The unit has been designed and manufactured 

ensuring

 a high level of user safety and resistance to 

interference 

that may 

occur 

with

in a typical industrial environment. In order to take full advantage of 

these  characteristics

  the

  installation  of  the  unit  must  be  conducted  correctly  and  according  to  the 

local regulations.

Loop Powered Display

250 SERIES

04

This is a class A unit. In a residential or a similar area it can cause radio frequency 
interference. In such cases the user can be requested to use appropriate preventive 
measures.

4.1. UNPACKING

After removing the unit from the protective packaging, check for transportation damage. Any 
transportation damage must be immediately reported to the carrier. Also, write down the unit serial 
number on the housing and report the damage to the manufacturer.

4.2. ASSEMBLY

To install device on the wall, a pinholes 
s h o u l d  b e  m a d e .  F i g u r e  4 . 1  p r e s e n t s  
dimensions of the device and distances 
between holes. The back side of the device 
has four mounting holes. This part of the 
c a s e  s h o u l d  b e  m o u n t e d  t o  a  w a l l  b y  
screws.

Disconnect the power supply prior to starting assembly.

Check the connections are wired correctly prior to switching the unit on.

User's Manual,

Warranty,

Included

 with the unit 

Installation should be conducted by qualified personnel.

Read the basic safety requirements on page 3 prior to starting the installation.

All installation works must be conducted with a disconnected power supply.

5

D

 


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Due to possible significant interference in industrial installations appropriate measures 
assuring correct operation of the unit must be applied. To avoid the unit of improper 
indications keep recommendations listed below.

Connections of measurement signal and relay output should be made by screw connectors 
mounted inside the housing.

Avoid common (parallel) leading of signal cables and transmission cables together with power 
supply cables and cables controlling induction loads (e.g. contactors). Such cables should 
cross at a right angle.

Contactor coils and induction loads should be equipped with anti-interference protection 
systems, e.g. RC-type.

In the case of magnetically induced interference the use of twisted couples of signal cables (so-
called “spirals”) is recommended.

Installation should be conducted by qualified personnel. During installation all available 

safety requirements should be considered. The 

installer

 is responsible for executing the 

installation according to this manual, local safety and EMC regulations.

Wiring must meet appropriate standards and local regulations and laws.

Tighten the clamping screws. The recommended tightening torque is 0.5 Nm. Loose 

screws can cause fire or defective operation. Over tightening can lead to damaging the 

connections inside the units and breaking the thread.

The unit is equipped with housing, cover and gland or M12 connector, protecting against 

water intrusion. Pay special attention to their correct tightening or clamping. In the case 

of any doubt consider using additional preventive measures (covers, roofing, seals, etc.). 

Carelessly executed assembly can increase the risk of electric shock.

0.25"

max. 0.08"

Figure 4.2. Method of cable insulation replacing and cable terminals

4.3. CONNECTION METHOD

CAUTION

Loop Powered Display

250 SERIES

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Figure 4.3. Terminals description

5

3

4

ON

OFF

R

+

-

1

2

Figure 4.4. Connection of 2-wire current converters

1

2

5

3

4

24V DC

Figure 4.5. Connection of 3-wire current converters

+

1

2

5

3

4

www. levelprosales.com

Loop Powered Display

250 SERIES

06

 


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5. DESCRIPTION OF THE FRONT PANEL AND IR REMOTE

CONTROLLER PUSH-BUTTONS

4.4. MAINTENANCE

The unit does not have any internal replaceable or adjustable components available to the user. Pay 
attention to the ambient temperature in the room where the unit is operating. Excessively high 
temperatures 

can result in

 

damage to

  the internal components and shorten the fault-free time of unit 

operation.
In cases where the unit gets dirty do not clean with solvents. For cleaning use warm water with small 
amount of detergent or in the case of more significant contamination ethyl or isopropyl alcohol.

Using any other agents can cause permanent damage to the housing.

Product marked with this symbol should not be placed in municipal waste. 
Please check local regulations for disposal of electronic products.

infrared 

transmitter

+

Loop Powered Display

250 SERIES

07

Symbols and functions of Push Buttons:

Functions: 

• Enter to main menu ( press and hold for at least 2 sec.)
• Exit the current Screen and Enter to previous menu (or measure mode)
• Cancel the changes made in parameter being edited

MENU

ESC

Symbol used in the manual : [ESC/MENU]

 


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Functions :

• Start to edit the parameter
• Enter into the sub-menu
• Confirmation of changes made in parameter being edited

Functions :

• Change of the present menu
• Modification of the parameter value
• Change of the display mode

ENTER

Symbol used in the manual : [ENTER]

Symbol used in the manual : [^] [v]

Loop Powered Display

250 SERIES

08

6. PRINCIPLE OF OPERATION

Power  to  the    250  Series  display

  is  supplied  from

 

current  loop. 

To  ensure  the  display  functions 

correctly the signal of the current loop must be greater than 3.5mA.

  If signal value is 

below 3.5mA

 

a

 

running decimal point 

is

 displayed. Device configuration using remote controller is possible if signal 

value of current loop is greater than 10mA (

Located on

 front panel LED marked “

IR

”).

The measurement range equal to the nominal range is called: nominal measurement range

and  the  measurement  range  equal  to  the  extended  nominal  range  is  called:  permissible 

measurement range (figure 6.1).

If the result of measurement exceeds the permissible measurement range, warning “

-Hi-

” or “-

Lo-

” is 

displayed rather than input signal, depends on exceeded value (see description of “

Lo r

” i “

Hi r

” 

parameters, paragraph “

inPt

” 

menu

).

”Lo r”

 parameter

”Hi r” 

parameter

Figure 6.1. Definitions of measurement ranges in mode 4 ÷ 20mA

If the measurement value do not exceed

 the

 permissible measurement range, but displayed value 

exceeds range -999 ÷ 9999, the warning “

-Ov-

” is displayed rather than the calculated result.

6

.

1 MEASURING PRICIPLE

 


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The 

ITC 250

 controller is equipped with 

peak detection function. It can detect 

the input

 signal 

peaks 

and  display  their  values.  Presets  connected  with  this  function  are  placed  in 

“HOLd”

  menu  (see 

description of 

“HOLd”

 menu). 

6.2. DETECTION OF THE PEAK VALUES

Configuration of the device via menu 

do

es

 not 

interrupt the

 

level 

measure

ment

.

”timE”

”timE”

”PEA”

”PEA”

Figure 6.4. Process of peaks detection

Loop Powered Display

250 SERIES

09

The 

250 Series 

display 

is equipped with one bistable SPDT relay output. 

When energized it will LED 

'R' will light up

It

 is 

no

t

 

possible

 to change relay state 

until

 after

 10 seconds 

has 

elapsed since

 the 

 

device

 has been

 power

ed

 on. 

The display must be powered

 by at least 3.5 mA current. 

After the 

display is properly powered the change of relay state is four (4) seconds.

  During device power off the 

relay is set according to the value of 

“AL”

 parameter.

The different m

odes of the control can be changed 

and are dependent

 on the 

parameter values for 

 

“SEtP”

“SEt2”

“HYSt”

“modE”

 and 

“AL”

 The

 

“modE”

 parameter

 will also the

 relay 

to

 be used or 

controlled over one or two thresholds values. If one threshold is used (figure 6.4) the relay can be 

turned on (

“modE”

 = 

“on”

) or off (

“modE”

 = 

“oFF”

) when the input signal value enters the zone A. If 

two thresholds are used (figure 6.5) the relay will be turned on when value of input signal enters the 

zone A (

“modE”

 = 

“in”

) or zone B (

“modE”

 = 

“out”

) and turned off if the signal enters the second 

one.

6.3. CONTROL OF THE RELAY OUTPUT

 


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The relay outputs and LEDs (named "

R

") can be controlled depend on both - the current value 

and the peak value (when peak detection is active, for flow rate only) of the input signal.

Figure 6.5. One threshold control of the relay/LED outputs

Figure 6.6. Two threshold control of the relay/LED outputs

”SEt P” or ”SEt P2” parameter

Loop Powered Display

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10

To enter main menu (measurement mode) 

the 

operator must to press and hold 

the 

[ESC/MENU]

 

button for a minimum of two

 

(

2

)

 sec

onds

If the user password is defined (see parameter 

“Scod”

), 

the 

operator

 will

 have to 

correctly enter it at 

this point prior to

 proceeding to menu options . 

After entering of last digit of the 

correct 

password 

the 

first menu position will be displayed 

if the 

password is incorrect that a

 warning 

“Err”

 

will be displayed

.

7.1. PROGRAMMING MENU

7. DEVICE PROGRAMMING

The 

display

 menu allow  user to set all  parameters connected to operation  of  measurement input, 

control modes, critical situations 

behavior (relay) 

 and access settings. The meaning of the particular 

parameters is described in paragraph 

MENU DESCRIPTION

.

The device 

is

 configured via IR remote controller but it must be supplied at least by 

10mA 

current 

and the temperature must be at least 

0°C 

in order to do that.

 


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To start edition of any parameter user should select name of desired one using 

[^] [v] 

buttons and 

then press 

[ENTER]

.

[ESC/MENU] 

button allow user to exit present menu level and 

move

 to upper level menu 

(or

 

measurement mode).

7.2. PARAMETERS EDITION

 

After about 1 min

ute of inactivity

 

(

since last use of the button

)

 the 

device exits the menu mode 

and returns to the measurement mode

.

MENU

ESC

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250 SERIES

11

Numerical parameters are displayed as decimal numbers. The mode of its new value entering 

depends on chosen edit method ( see parameter 

“Edit”

).

In mode 

“by digit”

 (

“Edit”

=

“dig”

) pressing one of the keys 

[^]

 or 

[v]

 causes change of current position 

(flashing digit) or the sign (+/-). Short pressing of the 

[ENTER]

 button causes change of the position 

(digit).

Press 

[ENTER] 

at least 2 seconds to accept the changes, after that question 

“SEt?”

 is displayed, and 

user must to confirm (or cancel) the changes. To conf

i

rm changes (EEPROM) press

 the

 

[ENTER]

 

button shortly after 

“SEt?”

 is displayed. To cancel the changes press 

[ESC]

 button shortly after 

“SEt?”

 is displayed. 

The

 device 

will then 

return to the 

main 

menu.

7.2.1. Numeric parameters (

D

igit 

C

hange 

M

ode)

Switch parameters can be described as a sets of values (a lists) out of which only one of the options 

available on the list can be selected for the given parameter. Options of switching parameter are 

selected using 

[^]

[v]

 keys.

Pressing

 of

 the

 

[ENTER]

 

will prompt the user to 

 acknowledge 

the 

question (

“SEt?”

). If key 

[ENTER]

 is 

pressed 

once 

again, the changes are accepted

 and will be 

stored in EEPROM. Pressing the key 

[ESC]

 

after 

“SEt?”

 

will

 cancel 

any

 changes and 

will 

return to

 the main display

 menu.

7.2.2. Switch parameters (“LIST” type)

Selection of sub-menu or parameter for editing. Name of selected item (submenu or 

parameter) is displayed.

Operation of 

[ENTER]

 button depend on present menu position:

• if the name of some sub-menu is displayed - 

Press Enter

the 

name of the first

 

parameter

(or next level sub-menu) is

 then

 displayed,

• if the name of some parameter is displayed - 

Press Enter

; present

 

value of the parameter is

displayed

Functions of the buttons while sub-menu and parameters choice:

 


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MENU

ESC

Pressing  this  button  operator  can  cancel  the  changes  done  up  to  now  (if  they  were  not 
approved by 

[ENTER]

 button after the 

“SEt?”

 ask) and come back to menu

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250 SERIES

12

7.3. MENU DESCRIPTION

7.3.1. “rEL” menu

Due to problem with direct displaying of 

“m”

 letter, it is exchanged with special sign “m“. 

Independently in user manual letter 

“m”

 is used to make it more readable (example: 

“modE”

).

The relay output and LED (named 

R

) can be controlled depend on both - the current value and the 

peak value (when peak detection is active) of the input signal.

Presented parameters should be set to ensure that 

“SEtP”

 + 

”HYSt”

“SEt2”

 + 

”HYSt”

“SEtP”

 - 

”HYSt”

 or 

“SEt2”

 - 

”HYSt”

 do not exceeds the measure range. Additionally, in two threshold mode 

(

“modE”

 = 

“in”

 or 

“out”

), the hysteresis for both thresholds must not cover each other (in other 

case relay can't change its state).

This menu allows to configure the operation mode of relay and LED marked 

“R”

. Principle of the relay 

operation is described in paragraph 

CONTROL OF THE RELAY OUTPUT

.

- password  checking.  If  some  password  different  from 

“0000”

  is  set,  then  every  enter  to

main menu follows the entering of password. If entered password is correct then first menu
position will be displayed else warning 

“Err”

, and unit returns to measurement mode.

“- - - -”

“SEtP”

first threshold of the relay (range -999 ÷ 9999). Negative values can be input by selecting a “-” sign on first digit

(to change value use 

[^]

 and 

[v]

 buttons). 

Threshold is the medium value of relay hysteresis

.

“SEt2”

second threshold of the relay (range -999 ÷ 9999). Negative values can be input by selecting a “-” sign on first

digit ( to change value use 

[^] 

and 

[v]

 buttons). This threshold is accessible when 

“modE”

 parameter is set to

“in” or “out” value. 

Threshold is the medium value of relay hysteresis

.

“HYSt”

hysteresis of relay (range 0 ÷ 999). Full hysteresis of the relay is equal to 2x “HYSt” parameter.

The relay state can change when an input signal is out of 

threshold-hysteresis

 to 

threshold+hysteresis

 zone.

Functions of buttons when editing numeric and switching parameters :

While editing numeric parameter - change of current (flashing) digit.
While editing switch parameter - selection of switch parameter.

If  numerical  parameter  is  being 

changed  or  edited  a  quick 

press

ing  of  the

 

[ENTER]

 

button 

will 

change  edited position. A long

er

 press

 and hold (min 2 sec) 

of 

the 

[ENTER]

 

button 

will

  causes 

the

  display

 to prompt the user 

  a 

“SEt?”

  ask,  which  allow  user  to 

make  sure  if  change  of  the  parameter  value  is  correct.  If  switch parameter is being 
edited,  a  short  press  of 

[ENTER]

  button  causes  of  display  a 

“SEt?”

  ask.  When 

[ENTER]

  button  is  pressed  again  (while 

“SEt?”

  is  displayed)  the  new  value  of  the 

parameter is stored in EEPROM memory.

 


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This menu presets the measurement input:

7.3.2. “inPt” menu

LED lights when “ON” part of the relay is closed

, independently of relay’s mode.

• When power supply fail, unit sets relay state accordingly to 

“AL”

 parameter.

• If option 

“noCH”

 is selected for 

“AL”

 parameter, behaviour of the relay may depend on 

“FiLt”

parameter in some cases. If 

“FiLt”

 is set to big value and the input signal drops, result value of the

measure will change slow, causes of turning on or off relay due to thresholds values. The critical

situation is slowly detected, so it is impossible to predict the relay state in that situations.
• If parameter 

“AL”

 = 

“on”

, the relay will be turned on in the critical situations, even if his parameter

“modE”

 = 

“noAC”

.

If parameter 

“modE”

 is set to 

“on”

 , 

“oFF”

“in”

 or 

“Out”

 the 

“critical situation”

 means that 

allowable measurement range is exceeded.

If user defined characteristic is selected, and if number of defined points is lower than 2 then warning 

“Errc” is displayed in measurement mode.

“in”

- two threshold mode, the relay turns

 ON

 when the input signal exceeds from the bottom

“l

ower threshold

 

+ HYSt

” or from the top 

bigger threshold

 

- HYSt”

, and turns 

OFF

 when exceeds from the

top 

lower threshold

 

- HYSt” 

or from the bottom 

bigger threshold

 

+ HYSt”

. The 

bigger threshold

 means bigger

one of 

“SEtP”

 and 

“SEt2”

 thresholds, the 

lower threshold

 means lower one of 

“SEtP”

 and 

“SEt2”

 thresholds.

“out”

- two threshold mode, the relay turns 

ON

 when the input signal exceeds from the top 

lower threshold

 

- HYSt”

or from the bottom 

bigger threshold

 

+ HYSt”

, and turns 

OFF

 when exceeds from the bottom

lower threshold

 

+ HYSt”

 or from the top 

bigger threshold

 

- HYSt”

. The 

bigger threshold

 means bigger one of

“SEtP”

 and 

“SEt2”

 thresholds, the 

lower threshold

 means lower one of 

“SEtP”

 and 

“SEt2”

 thresholds.

“AL”

- this parameter defines the relay reaction when some critical situations occurs:

“noCH”

 - relay do not change his state,

“on”

  - relay will be turned 

ON

,

“oFF”

  - relay will be turned 

OFF

.

“CHAr”

- this option presets type of the conversion characteristic, and can be set to:

“Lin”

  - linear

“Sqr”

  - square

“Sqrt”

  - square root

}

“USEr”

- user defined characteristic. Maximal length 20 points. Every point is  defined by user. Adding,

Editing and Deleting of points is done by options 

“AddP”

“EdtP”

“dELP”

 (

“InPt”

 menu) respectively. 

When one of those characteristics is chosen display

range is defined by 

“Lo C”

 and 

“Hi C”

.

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"modE" - relay operation mode:

“noAc”

the relay is not active (doesn’t change state)

“on”

one threshold mode, the relay turns 

ON

 when input signal exceeds from the bottom 

SEtP+HYSt

 value, and turns

OFF

 when exceeds from the top

 SEtP-HYSt

,

“oFF”

one threshold mode, the relay turns 

ON

 when input signal exceeds from the top 

SEtP-HYSt

 value, and turns 

OFF

when exceeds from the bottom 

SEtP+HYSt

,

 


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The process of displayed result calculation is described in details in 

DISPLAY VALUES CALCULATION

 

paragraph.

“AddP”

“dELP”

 and 

“EdtP”

 options are available only if the user defined characteristic is used (it 

means when parameter 

“CHAr”

 = 

“USEr”

).

• User can not enter two points with the same value of 

“X”

 coordinate. If user trays to do it, 

“Err”

warning is displayed. To modify any defined point use 

“EdtP”

 option.

• To distinguish 

“X”

 and 

“Y”

 coordinates, if 

“X”

 coordinate is displayed an additional decimal point on

utmost right position is displayed.

• If user defined characteristic is selected, and if number of defined points is lower than 2 then warning

“Errc”

 is displayed in measurement mode.

If user defined characteristic is selected (parameter 

“CHAr”

 = 

“USEr”

) the parameters 

“Lo C”

 and 

“Hi

 

C”

 

are not available for modification, due to their values are calculated from defined characteristic.

“FiLt”

- this parameter sets filtration rate. It can be set to values from 0 (no filtration )

to 5 (strongest filtration – time window about 3 sec).

“Pnt”

- decimal point position. It can be set to one of :

“0”

“0.0”

“0.00”

“0.000”

Decimal point position is changed by 

[^]

[v]

 buttons.

“dELP”

- this option allows user to delete any of the points of the user defined characteristic. After selection current

number of points of the user defined characteristic is displayed for about approx. 1.5 sec. After that device

waits for selection of point being deleted (by 

[^]

[v]

 buttons). The short pressing of 

[ENTER]

 button causes by

switching between X and Y value of the displayed point. The long press (press and hold at least 2 sec) of 

[ENTER]

button causes by displaying 

“dEL?”

 ask. If 

[ENTER] 

button is pressed again, current point is deleted and new

updated number of points of the user defined characteristic is displayed.

“Pnt”

- this option allows user to modify of particular point of the user defined characteristic. After selection current

number of points of the user defined characteristic is displayed for about approx. 1.5 sec. After that device waits

for selection of point being edited (by 

[^]

[v]

 buttons). The short pressing of 

[ENTER]

 button causes by switching

between 

X

 and 

Y

 value of the displayed point. The long press (press and hold at least 2 sec) of 

[ENTER]

 button

causes by entering to edit the selected coordinate of the point. Modification of the coordinates is done

accordingly to numerical parameters edition.

“AddP”

- this menu allow user to add single point to the user defined characteristic. After selection of this option device

waits for 

“X”

 and 

“Y”

 coordinates of new point. Modification of the coordinates is done accordingly to numerical

parameters edition. Coordinate 

“X”

 defines the percentage ratio of input current to selected current range.

The 

“X”

 range: -99,9 ÷ 199,9. Coordinate 

“Y”

 defines displayed value for particular 

“X”

 value. The 

“Y”

 value can be

changed in range: -999 ÷ 9999, decimal point position depend on 

“Pnt”

 parameter (menu 

“inPt”

).

“Lo C”

“Hi C”

These parameters describe the values displayed for minimum and maximum input current. 

“Lo C”

 parameter

defines the value displayed when input current is equal 4 mA, and 

“Hi C”

 parameter defines the value displayed

for 20 mA of input current. Available range for these parameters: -999 ÷ 9999. Negative values can be set by

entering 

'-'

 sign on the first position (by use of 

[^]

[v]

 buttons).

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“Lo r”, “Hi r”

- these parameters define the expansion of nominal range in percent. They determine the permissible range

of input signal (figure 7.1).
The permissible range allow user to exceed the nominal range of input signal. If input value is contained in the

permissible range a proper result is displayed. If input signal exceeds this range (defined by 

“Lo r”

 and 

“Hi r”

),

“-Lo-”

 or 

“-Hi-”

 warning is displayed depend on input signal value.

 


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This menu contains parameters connected with peak detection function. See also full description of 

the peak detection function in paragraph: 

DETECTION OF THE PEAK VALUES

7.3.3. ”HOLd” menu

The 

“Lo r”

 parameter determines lower border of the permissible range calculated due to 

expression: I

min

 = 4 mA - 4 mA × 

“Lo r”

 %.

The 

“Lo r”

 value can be set from 0 to 12.4%.

Parameter 

“Hi r”

 determines the upper border of the permissible range accordingly to the 

expression: I

max

 = 20 mA + 20 mA × 

“Hi r”

 %.

The value of 

“Hi r”

 can be set from 0 to 19.9%

In example no 1 of the 

DISPLAY VALUES CALCULATION

 paragraph the procedure of the permissible 

input range determining is presented in details.

If the measurement value do not exceeds 

permissible measurement range

 but displayed value exceeds 

range -999 ÷ 9999, the warning “-Ov-” is displayed rather than the calculated result.

“modE”

- the type of detected changes of the input signal, can be set to values:

“norm”

- peaks - peak and next drop of the input signal of value equal at least 

“PEA”

,

“inv”

  - drops - drop and next peak of the input signal of value equal at least 

“PEA”

,

"

"

"

"

"

"

5

"

"

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“PEA”

- minimal detected signal change classified as peak or drop (see Figure 6.2)

“timE”

- maximum time of displaying of the peak (drop) value, can be set from 0.0 to 19.9 sec, with 0.1 sec. resolution.

“HdiS”

- type of displayed values:

“H r1”

- relay/LED output R operation mode:

“rEAL”

- current value is displayed,

“HOLd”

 - peak (drop) value is displayed,

“rEAL”

  - relay/LED operates depend on the current value,

“HOLd”

- relay/LED operates depend on the peak (drop) value.

 


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This parameter defines user password (4-digits number). If this parameter is set at value 

“0000”

, user 

password is turned off.

7.3.4. “Scod” parameter

This setting allows to restore the factory settings of the device. To get the access to this option 

special password is required: “5465”, next the device displays acknowledge question 

“SEt?”

. Press 

[ENTER]

 to acknowledge the restoring of factory settings or 

[ESC]

 to cancel.

7.3.5. “ dEFS” parameter

This menu contains the parameters for authorized service only. To enter this menu proper service 

password must be entered. Improper settings can causes of damage of the device.

7.3.6. “SErv” menu

If the user do not remember his password, the access to the menu is possible by the “one-use 

password”. To get this password please contact with Marketing Division. “Single use password” 

can be used only one time, after that it is destroyed. Entering this password causes in clearing of 

user password, it means sets the user password to “0000”.

The “one-use password” can be used 

ONE TIME ONLY

, it is impossible to use it again! The “one-use 

password” can be restored by Service Division only.

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